What Is 12mm Expanded Metal Lath Screwfix?

12mm expanded metal lath (Screwfix standard) is a heavy-duty galvanized steel rendering lath with a 12mm short way diamond (SWD) opening size. It is the most popular and versatile type of expanded metal lath used in the UK, Ireland, and Europe for plastering, external wall insulation (EWI), rendering, and stucco reinforcement.

Made from hot-dip galvanized steel, this lath is corrosion-resistant, highly durable, and designed to provide a rigid, stable base for mortar and render. The 12mm diamond pattern ensures maximum mechanical bonding between the lath and the building material, preventing cracking, shrinking, and delamination over time.

Our product is fully compatible with Screwfix-quality standards and is widely used by builders, plasterers, and contractors across the UK and EU.

Key Specifications of 12mm Expanded Metal Lath

Our 12mm expanded metal lath (Screwfix-grade) follows strict British and European construction specifications:

These specifications match the premium 12mm expanded metal lath available from Screwfix and other major UK construction suppliers. Full technical data is available in our metal mesh product catalog.

Core Advantages of 12mm Expanded Metal Lath Screwfix

Our 12mm expanded metal lath offers superior performance for professional construction projects:

Perfect Bonding Strength – 12mm diamond pattern locks render and plaster firmly in place.

Anti-Crack Protection – Reinforces walls to prevent structural and thermal cracking.

Long-Lasting Galvanized Coating – Resists rust and corrosion in indoor and outdoor environments.

High Flexibility & Rigidity – Easy to bend, cut, and form while maintaining structural stability.

Lightweight & Easy Installation – Reduces labor time and installation cost for tradesmen.

UK & EU Standard Approved – Complies with building regulations for commercial and residential use.

Cost-Effective Bulk Supply – Factory-direct pricing lower than traditional hardware stores.

Main Applications of 12mm Expanded Metal Lath

Our Screwfix-standard 12mm expanded metal lath is used for all types of professional construction work:

• External rendering and external wall insulation (EWI)
• Internal plastering and drylining reinforcement
• Stucco and textured coating applications
• Brick, block, and concrete wall reinforcement
• Ceiling plaster and suspended ceiling support
• Repair and renovation of damaged walls
• Commercial building facade reinforcement
• Industrial and residential construction projects

It is the top choice for professional plasterers and builders in the UK because of its reliability and compatibility with all types of mortar and render.

Installation Guide for 12mm Expanded Metal Lath

Professional installation steps for 12mm expanded metal lath (Screwfix standard):

1. Surface Preparation – Clean the wall surface and remove dust, grease, and loose materials.

2. Cutting & Fitting – Cut the lath to size using tin snips or metal shears; overlap edges by 50mm.

3. Fixing – Secure lath with galvanized nails, screws, or staples at 150mm intervals.

4. Reinforcement – Ensure corners and openings are fully reinforced with extra lath strips.

5. Rendering – Apply mortar or render directly onto the lath for maximum bonding.

Correct installation ensures long-term durability and prevents common rendering failures.

Why Choose Our 12mm Expanded Metal Lath Over Screwfix?

While Screwfix offers high-quality retail lath, our factory-direct solution provides unbeatable benefits for bulk buyers and contractors:

Wholesale Bulk Pricing – Save 30%–50% compared to retail hardware store prices.

Custom Sizes Available – Custom sheets and rolls to fit your exact project requirements.

Full Container Supply – Ideal for large construction projects and distributors.

Same Premium Quality – Meets or exceeds Screwfix lath standards and BS certifications.

Global Fast Shipping – Direct shipment from factory to UK/EU ports with short lead times.

With nearly 20 years of metal mesh manufacturing experience, we are trusted by UK construction companies for reliable, high-performance lath products.

Bulk Wholesale & Custom Orders

We support large-scale construction projects and trade distributors with flexible ordering options:

• Bulk wholesale pricing for full containers
• Custom sheet and roll sizes available
• Private labeling and packaging for distributors
• Consistent quality for long-term contracts
• Fast production and short lead times

Whether you are a small local builder or a large national construction company, we can supply the 12mm expanded metal lath you need at a competitive price.